Agricultural Water Conservancy Facility Preservation and Repair Method "Water Stop Band Method"
Repair and seismic reinforcement of pipeline joints! Repair methods to prevent the decline of water stop performance.
The "Water Stop Band Method" is a repair technique that uses water-expandable sponge within the water-tight rubber of the water stop section to prevent the decline in water stop performance caused by the compression permanent deformation of the water-tight rubber. The water-expandable sponge attached to the water stop section of the water-tight rubber enhances the water stop effect due to the lateral restraint force at both ends of the attachment groove. Additionally, by making the bolt fixing part after the expansion of the fixed ring in a wedge shape, it creates a structure that prevents loosening. 【Features】 ■ Repair and seismic reinforcement method for pipeline joints ■ Prevents decline in water stop performance ■ Uses water-expandable sponge ■ Loosening prevention structure ■ Design registration No. 1400834 *For more details, please refer to the PDF document or feel free to contact us.
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【Applicable Conditions】 ■ Applicable for pipe diameters from φ800mm to φ3,000mm. Note: Equipment can be transported in and out from a manhole with a diameter of φ600mm. ■ Joint spacing of 90mm or less, withstands internal water pressure of 1.5Mpa, and external water pressure of 0.2Mpa (when additional fixed rings are adopted). ■ Step difference of pipe joints is 40mm or less, and difference in internal pipe diameter is 20mm or less. ■ Pipe slope is normally constructed at less than 5 degrees; for slopes greater than this, additional safety measures will be implemented during construction. ■ Applicable pipe types include PC pipes, FRPM pipes, concrete pipes, ductile pipes, steel pipes, polyethylene pipes, etc. *For more details, please refer to the PDF document or feel free to contact us.
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[Usage] ■Repair and seismic reinforcement of pipeline joints, etc. *For more details, please refer to the PDF document or feel free to contact us.
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Company information
Rinwa Concrete Co., Ltd. is a company located in Bunkyo-ku, Tokyo, engaged in the manufacturing and sales of concrete products for civil engineering, as well as rental services and the design and development of concrete products for civil engineering. They provide concrete products specialized for rivers, coastlines, ports, erosion control, roads, and agricultural facilities.
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